7. (v.i.)smut to become affected with smut, as a plant.
Etymology: (1580–90; akin to earlier smit (OE smitte), by assoc. with smudge , smutch)
Definition of 'SMUT'
Princeton's WordNet
1. (noun)carbon black, lampblack, soot, smut, crock a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink
2. (noun)smut destructive diseases of plants (especially cereal grasses) caused by fungi that produceblack powdery masses of spores
4. (noun)obscenity, smut, vulgarism, filth, dirty word an offensive or indecent word or phrase
5. (verb)pornography, porno, porn, erotica, smut creative activity (writing or pictures or films etc.) of no literary or artistic value other than to stimulate sexual desire
6. (verb)smut make obscene "This line in the play smuts the entire act"
7. (verb)smut stain with a dirty substance, such as soot
8. (verb)smut become affected with smut "the corn smutted and could not be eaten"